Keysight B2981A (Agilent) FEMTO / PICOAMMETER The Agilent  B2981A Femto / Picoammeter is designed with distinctive capabilities and features guaranteeing state-of-the art measurement performance. It offers mimimum cur resolution for meeting all low-level cur measurement needs and its voltage sourcing feature supports resistance measurements. Its unique color LSD provides multiple options for viewing data and front-panel capabilities allow you to capture transient behavior and perform quick statistical analyses without a PC. Features and Specifications of the Keysight B2981A (Agilent) Femto / Picoammeter include:Features:

Graphical capabilities:

• Time domain view to capture transients
• Histogram view to perform quick data analysis

Easy-to-use navigation to select optimal range and aperture

Optional Test Setup Integrity Checker function for noise source isolation

Versatile interface (USB 2.0: LAN, GPIB, LXI Core)

USB (front): store data, save/recall setup information

Free PC control software

Applications:

• Material science (Biomaterials, ceramics, elastomers, films, dielectric materials, electrochemical, ferroelectric materials, graphene, metals, organic materials, nano-materials, polymers, semiconductors, etc.)
• Devices & elecronic components (capacitors, resistors, diodes, sensors, transistors including TFT and CNT, optoelectronics, solar cells, etc.)
• Electronic/non-electronic systems (ion beam, electron beam, sensing systems, particle measurements, embedded precision instruments, etc.)

Time domain view to capture transients

Histogram view to perform quick data analysis

Material science (Biomaterials, ceramics, elastomers, films, dielectric materials, electrochemical, ferroelectric materials, graphene, metals, organic materials, nano-materials, polymers, semiconductors, etc.)

Devices & elecronic components (capacitors, resistors, diodes, sensors, transistors including TFT and CNT, optoelectronics, solar cells, etc.)

Electronic/non-electronic systems (ion beam, electron beam, sensing systems, particle measurements, embedded precision instruments, etc.)

Specifications of the Keysight B2981A (Agilent) Femto / Picoammeter :

Measurement resolution:  6½ digits

Cur measurement:  0.01 fA – 20 mA

Minimum range:  2 pA

Maximum reading rate:  20,000 rdg/s

< 20 µ V burden voltage in its lowest cur range

Voltage measurement: 

• Voltage range: 2 V
• Display resolution:  1 µV
• Accuracy ±(% + offset):  0.025 + 40 µV
• Voltage range: 20 V  
• Display resolution:  10 µV
• Accuracy ±(% + offset):  0.025 + 400 µV

Input bias cur:  < 20 fA

Input impedance:  > 200 TΩ, parallel with < 20 pF (non-guarded) or < 2 pF (guarded)

RMS noise:  1.4 µV for 2 V range, 10 s duration, shorted input

Measurement control / navigation: 

• Ranging: Automatic or manual
• Aperture time (integration time):  10 µs to 100 PLC
• Offset cancelling:  Null, Zero correct
• Digital filter: Medium filter (2R + 1, R = 1 to 15), moving average (1 to 100, step 1)  
• Math:  Preset and user definable expressions
• Statistics:  Histogram View mode: mean, sigma, # of bins and # of samples
• Line frequency detection:  Auto detect: 50 Hz or 60 Hz 

Front panel operation:

• Front panel interface:  4.3″ TFT color display with keypads and rotary knob
• View mode: Meter view, Graph view, Histogram view and Roll view
• Hard keys:  Single Trigger and Run/Stop control, measurement navigation keys, Rotary Knob and Cursors, Ammeter Input and V Source Output control, Cancel/Local
• Soft keys:  Function, System and Input Assist keys
• Indicators: Channel (measurement) status, System status
• LEDs:  
• Power (color changes when charging)
• Input and Output (color changes when high voltage sourcing)

Input/Output specifications:  

• Meter input connector:  Three lug triaxial for ammeter on rear panel 
• Maximum input:
• Ammeter: 30 mA,
• Voltmeter: 40 V
• Source output connector:  Two banana jacks on rear panel
• Maximum common mode voltage:  Meter common: 500 V peak: V Source 1,000 V peak
• Isolation (Meter common to chassis:  > 10 GΩ, < 500 pF 
• Analog output: 2 V for full range input, non-inverting in voltage and cur measurement modes, 1 kΩ output impedance
• Interlock:  2.5 mm pluggable terminal block, 4 pin
• External trigger:
• Trigger input:  BNC
• Logic:  Programmable edge triggered
• Min pulse width:  10 µs
• Trigger output:  BNC
• Logic:  Prgrammable edge triggered
• Min pulse width:  10 µs
• Digital I/O:
• Connector type:  DSUB female 9 pins
• Input/output pins:  DIO 7 pins, +5V, GND
• Absolute  max input voltage:  5.25 V
• Absolute  min input voltage:  -0.25 V
• Max logic L input voltage:  -0.8 V, Pull-up to 5 V by 5 kΩ
• Min logic H input voltage:  2.0 V, Pull-up to 5 V by 5 kΩ
• Max source cur:  1 mA @ Vo = 0 V
• Max sink cur:  50 mA @ Vo = 5 V
• 5 V power supply pin:  Limited to 500 mA, resettable fuse protected

Voltage range: 2 V

• Display resolution:  1 µV
• Accuracy ±(% + offset):  0.025 + 40 µV

Voltage range: 20 V  

• Display resolution:  10 µV
• Accuracy ±(% + offset):  0.025 + 400 µV

Display resolution:  1 µV

Accuracy ±(% + offset):  0.025 + 40 µV

Display resolution:  10 µV

Accuracy ±(% + offset):  0.025 + 400 µV

Ranging: Automatic or manual

Aperture time (integration time):  10 µs to 100 PLC

Offset cancelling:  Null, Zero correct

Digital filter: Medium filter (2R + 1, R = 1 to 15), moving average (1 to 100, step 1)  

Math:  Preset and user definable expressions

Statistics:  Histogram View mode: mean, sigma, # of bins and # of samples

Line frequency detection:  Auto detect: 50 Hz or 60 Hz 

Front panel interface:  4.3″ TFT color display with keypads and rotary knob

View mode: Meter view, Graph view, Histogram view and Roll view

Hard keys:  Single Trigger and Run/Stop control, measurement navigation keys, Rotary Knob and Cursors, Ammeter Input and V Source Output control, Cancel/Local

Soft keys:  Function, System and Input Assist keys

Indicators: Channel (measurement) status, System status

LEDs:  

• Power (color changes when charging)
• Input and Output (color changes when high voltage sourcing)

Power (color changes when charging)

Input and Output (color changes when high voltage sourcing)

Meter input connector:  Three lug triaxial for ammeter on rear panel 

Maximum input:

• Ammeter: 30 mA,
• Voltmeter: 40 V

Source output connector:  Two banana jacks on rear panel

Maximum common mode voltage:  Meter common: 500 V peak: V Source 1,000 V peak

Isolation (Meter common to chassis:  > 10 GΩ, < 500 pF 

Analog output: 2 V for full range input, non-inverting in voltage and cur measurement modes, 1 kΩ output impedance

Interlock:  2.5 mm pluggable terminal block, 4 pin

External trigger:

• Trigger input:  BNC
• Logic:  Programmable edge triggered
• Min pulse width:  10 µs
• Trigger output:  BNC
• Logic:  Prgrammable edge triggered
• Min pulse width:  10 µs

Digital I/O:

• Connector type:  DSUB female 9 pins
• Input/output pins:  DIO 7 pins, +5V, GND
• Absolute  max input voltage:  5.25 V
• Absolute  min input voltage:  -0.25 V
• Max logic L input voltage:  -0.8 V, Pull-up to 5 V by 5 kΩ
• Min logic H input voltage:  2.0 V, Pull-up to 5 V by 5 kΩ
• Max source cur:  1 mA @ Vo = 0 V
• Max sink cur:  50 mA @ Vo = 5 V
• 5 V power supply pin:  Limited to 500 mA, resettable fuse protected

Ammeter: 30 mA,

Voltmeter: 40 V

Trigger input:  BNC

• Logic:  Programmable edge triggered
• Min pulse width:  10 µs

Trigger output:  BNC

• Logic:  Prgrammable edge triggered
• Min pulse width:  10 µs

Logic:  Programmable edge triggered

Min pulse width:  10 µs

Logic:  Prgrammable edge triggered

Min pulse width:  10 µs

Connector type:  DSUB female 9 pins

Input/output pins:  DIO 7 pins, +5V, GND

Absolute  max input voltage:  5.25 V

Absolute  min input voltage:  -0.25 V

Max logic L input voltage:  -0.8 V, Pull-up to 5 V by 5 kΩ

Min logic H input voltage:  2.0 V, Pull-up to 5 V by 5 kΩ

Max source cur:  1 mA @ Vo = 0 V

Max sink cur:  50 mA @ Vo = 5 V

5 V power supply pin:  Limited to 500 mA, resettable fuse protected

    

• Keysight (Agilent) B2981A - Datasheet (1 MB)